Nancy Yi Fan, 13, has done a lot for a person her age. When she was 7, she moved from China to the United States. She had to learn English and get used to life in America. It didn't take long. Soon, she was writing a book! Swordbird comes out next month. Nancy spent a year and a half writing it. Some of the characters take after her feathered friends. They "show the cheerful spirit that my pets have," she told TFK.